Implement multi-monitor support for Xorg

Hello. I’m using the MX Linux xfce_64 ISO and when launching Hosaka, it does not show the dialog to choose the screen / window, even if I have a second monitor connected. It also does not show the text that lets me change the selected screen:

Not sure if logs would help but you can check the logs for MX Linux in this specific comment:

https://hosaka.featurebase.app/p/export-error-youtube-upload-failed-upload-ended-unexpectedly/comment/69cb06d492362006b7e9f2a6